Methanol → 2-(1-(Benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(3-phenoxypropyl)thiazole-4-carboxylic acid

HRID 2178233Notes

Reaction equation

HRID 2178233 reaction equation
[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[NH:10][C:11]([N:13]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23]3[S:24][C:25]([CH2:33][CH2:34][CH2:35][O:36][C:37]4[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=4)=[C:26]([C:28]([O:30]CC)=[O:29])[N:27]=3)[CH:21]=2)[CH2:16][CH2:15][CH2:14]1)=[O:12].CO.C1COCC1.[Li+].[OH-]>O>[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[NH:10][C:11]([N:13]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23]3[S:24][C:25]([CH2:33][CH2:34][CH2:35][O:36][C:37]4[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=4)=[C:26]([C:28]([OH:30])=[O:29])[N:27]=3)[CH:21]=2)[CH2:16][CH2:15][CH2:14]1)=[O:12]

Participants

6

Reactant 4

HCID 887MethanolHCID 3939Lithium HydroxideHCID 8028TetrahydrofuranHCID 86643666Ethyl 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(3-phenoxypropyl)thiazole-4-carboxylate

Product 1

HCID 468405212-(1-(Benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(3-phenoxypropyl)thiazole-4-carboxylic acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
60 °C

Procedure

To ethyl 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(3-phenoxypropyl)thiazole-4-carboxylate in 1:1 MeOH and THF (2 mL) was added LiOH (5 mg, 0.21 mmol) dissolved in water (2 mL). The reaction mixture was stirred at 60° C. for 1 hour. The reaction mixture was concentrated under reduced pressure. To this crude material was added water and MeOH and allowed to sit overnight. The resulting precipitate was filtered and washed with water. To this solid was added water and acetonitrile and lyophilized to give 12 mg of the desired product 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(3-phenoxypropyl)thiazole-4-carboxylic acid (24). 1H NMR (400 MHz, DMSO) δ 8.62 (s, 1H), 7.60 (s, 2H), 7.51-7.33 (m, 3H), 7.27 (t, J=8.0, 3H), 7.17 (t, J=7.7, 2H), 6.92 (dd, J=7.5, 14.2, 5H), 4.03 (t, j=6.4, 3H), 3.95 (s, 2H), 3.42 (d, J=7.8, 4H), 2.78 (s, 2H), 2.10 (s, 3H), 1.88 (d, J=9.5, 3H).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additionTo this crude material was added water and MeOH
  3. waitto sit overnight
  4. filtrationThe resulting precipitate was filtered
  5. washwashed with water
  6. additionTo this solid was added water and acetonitrile

Sources & evidence

ORD record
ord-a2e8105511494454b5c81694ccdde951
Source dataset
uspto-grants-2015_06
Patent number
US09067928B2

Reaction notes

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